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Make use of gnu ld's -Bstatic and -Bdynamic switches to choose order of libraries searched by -l switch.

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[SVN r39113]
This commit is contained in:
Roland Schwarz
2007-09-03 19:38:40 +00:00
parent 793f19ac11
commit b3ec4fc36d
1 changed files with 47 additions and 2 deletions
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49
v2/tools/gcc.jam
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@@ -522,6 +522,50 @@ rule init-link-flags ( toolset linker condition )
flags $(toolset).link RPATH_LINK $(condition) : <xdll-path> : unchecked ;
flags $(toolset).link START-GROUP $(condition) : -Wl,--start-group : unchecked ;
flags $(toolset).link END-GROUP $(condition) : -Wl,--end-group : unchecked ;
# gnu ld has the ability to change the search behaviour for libraries referenced
# by -l switch. These modifiers are -Bstatic and -Bdynamic and change search
# for -l switches that follow them. The following list shows the tried variants.
# The search stops at the first variant that has a match.
# *nix: -Bstatic -lxxx
# libxxx.a
#
# *nix: -Bdynamic -lxxx
# libxxx.so
# libxxx.a
#
# windows (mingw,cygwin) -Bstatic -lxxx
# libxxx.a
# xxx.lib
#
# windows (mingw,cygwin) -Bdynamic -lxxx
# libxxx.dll.a
# xxx.dll.a
# libxxx.a
# xxx.lib
# cygxxx.dll (*)
# libxxx.dll
# xxx.dll
# libxxx.a
#
# (*) This is for cygwin
# Please note that -Bstatic and -Bdynamic are not a guarantee that a static
# or dynamic lib indeed gets linked in. The switches only change search
# patterns!
# On *nix mixing shared libs with static runtime is not a good idea.
flags $(toolset).link FINDLIBS-ST-PFX $(condition)/<runtime-link>shared
: -Wl,-Bstatic : unchecked ;
flags $(toolset).link FINDLIBS-SA-PFX $(condition)/<runtime-link>shared
: -Wl,-Bdynamic : unchecked ;
# On windows allow mixing of static and dynamic libs with static runtime
flags $(toolset).link FINDLIBS-ST-PFX $(condition)/<runtime-link>static/<target-os>windows
: -Wl,-Bstatic : unchecked ;
flags $(toolset).link FINDLIBS-SA-PFX $(condition)/<runtime-link>static/<target-os>windows
: -Wl,-Bdynamic : unchecked ;
flags $(toolset).link OPTIONS $(condition)/<runtime-link>static/<target-os>windows
: -Wl,-Bstatic ;
}
case darwin :
{
@@ -587,7 +631,8 @@ rule link ( targets * : sources * : properties * )
actions link bind LIBRARIES
{
"$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,"$(RPATH)" -Wl,-rpath-link$(SPACE)-Wl,"$(RPATH_LINK)" -o "$(<)" $(START-GROUP) "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-ST) -l$(FINDLIBS-SA) $(END-GROUP) $(OPTIONS) $(USER_OPTIONS)
"$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,"$(RPATH)" -Wl,-rpath-link$(SPACE)-Wl,"$(RPATH_LINK)" -o "$(<)" $(START-GROUP) "$(>)" "$(LIBRARIES)" $(FINDLIBS-ST-PFX) -l$(FINDLIBS-ST) $(FINDLIBS-SA-PFX) -l$(FINDLIBS-SA) $(END-GROUP) $(OPTIONS) $(USER_OPTIONS)
}
# Default value. Mostly for the sake of intel-linux
@@ -651,7 +696,7 @@ rule link.dll ( targets * : sources * : properties * )
# Differ from 'link' above only by -shared.
actions link.dll bind LIBRARIES
{
"$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,"$(RPATH)" "$(.IMPLIB-COMMAND)$(<[1])" -o "$(<[-1])" $(HAVE_SONAME)-Wl,$(SONAME_OPTION)$(SPACE)-Wl,$(<[-1]:D=) -shared $(START-GROUP) "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-ST) -l$(FINDLIBS-SA) $(END-GROUP) $(OPTIONS) $(USER_OPTIONS)
"$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,"$(RPATH)" "$(.IMPLIB-COMMAND)$(<[1])" -o "$(<[-1])" $(HAVE_SONAME)-Wl,$(SONAME_OPTION)$(SPACE)-Wl,$(<[-1]:D=) -shared $(START-GROUP) "$(>)" "$(LIBRARIES)" $(FINDLIBS-ST-PFX) -l$(FINDLIBS-ST) $(FINDLIBS-SA-PFX) -l$(FINDLIBS-SA) $(END-GROUP) $(OPTIONS) $(USER_OPTIONS)
}
# Set up threading support. It's somewhat contrived, so perform it at the end,